Class: Rbind::RClass

Inherits:
RStruct show all
Defined in:
lib/rbind/core/rclass.rb

Instance Attribute Summary collapse

Attributes inherited from RNamespace

#consts, #operation_alias, #root

Attributes inherited from RDataType

#cdelete_method, #check_type, #extern_package_name, #invalid_value, #ptr, #ref, #typedef

Attributes inherited from RBase

#alias, #cname, #csignature, #flags, #ignore, #name, #namespace, #owner, #signature, #version

Instance Method Summary collapse

Methods inherited from RStruct

#add_attribute, #basic_type?, #cdelete_method, #constructor?, #valid_flags

Methods inherited from RNamespace

#add_const, #add_default_types, #add_namespace, #add_operation, #add_simple_type, #add_simple_types, #add_type, #const, #constructor?, #container?, #delete_type, #each_const, #each_container, #each_operation, #each_type, #extern?, #method_missing, #operation?, #root?, #type, #types, #use_namespace

Methods inherited from RDataType

#==, #basic_type?, #check_type?, #cname, #container?, #delete!, #extern?, #generate_signatures, #ptr?, #ref?, #to_ptr, #to_value, #typedef?, #valid_flags

Methods inherited from RBase

#add_flag, basename, #binding, #full_name, #generate_signatures, #ignore?, #map_to_namespace, namespace, #namespace?, normalize, to_cname, #valid_flags, #validate_flags

Constructor Details

#initialize(name, *parent_classes) ⇒ RClass

Returns a new instance of RClass.



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# File 'lib/rbind/core/rclass.rb', line 6

def initialize(name,*parent_classes)
    @parent_classes  = Hash.new
    parent_classes.flatten!
    parent_classes.each do |p|
        add_parent(p)
    end
    super(name)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Rbind::RNamespace

Instance Attribute Details

#parent_classes ⇒ Object (readonly)

Returns the value of attribute parent_classes.



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# File 'lib/rbind/core/rclass.rb', line 4

def parent_classes
  @parent_classes
end

Instance Method Details

#add_parent(klass) ⇒ Object 



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# File 'lib/rbind/core/rclass.rb', line 134

def add_parent(klass)
    if @parent_classes.has_key? klass.name
        raise ArgumentError,"#A parent class with the name #{klass.name} already exists"
    end
    if klass.full_name == full_name || klass == self
        raise ArgumentError,"class #{klass.full_name} cannot be parent of its self"
    end
    # we have to disable the type check for the parent class 
    # otherwise derived types cannot be parsed
    klass.check_type = false
    @parent_classes[klass.name] = klass
    self
end

#attribute(name) ⇒ Object 



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# File 'lib/rbind/core/rclass.rb', line 31

def attribute(name)
    attrib = @attributes[name]
    attrib ||= begin
                   p = parent_classes.find do |k|
                       k.attribute(name)
                   end
                   a = p.attribute(name).dup if p
                   a.owner = self if a
                   a
               end
end

#attributes ⇒ Object 



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# File 'lib/rbind/core/rclass.rb', line 15

def attributes
    attribs = @attributes.values
    parent_classes.each do |k|
        others = k.attributes
        others.delete_if do |other|
            attribs.inclue? other
        end
        others = others.map(&:dup)
        others.each do |other|
            other.owner = self
        end
        attribs += others
    end
    attribs
end

#operation(name, raise_ = true) ⇒ Object 



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# File 'lib/rbind/core/rclass.rb', line 89

def operation(name,raise_=true)
    ops = if @operations.has_key? name
              @operations[name].dup
          else
              []
          end
    parent_classes.each do |k|
        other_ops = Array(k.operation(name,false))
        other_ops.delete_if do |other_op|
            ops.include? other_op
        end
        ops += other_ops
    end
    if(ops.size == 1)
        ops.first
    elsif ops.empty?
        raise "#{full_name} has no operation called #{name}." if raise_
    else
        ops
    end
end

#operations ⇒ Object 



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# File 'lib/rbind/core/rclass.rb', line 43

def operations
    # temporarily add all base class operations
    own_ops = @operations.dup
    parent_classes.each do |k|
        k.operations.each do |other_ops|
            next if other_ops.empty?
            ops = if @operations.has_key?(other_ops.first.name)
                    @operations[other_ops.first.name]
                  else
                      []
                  end
            other_ops.delete_if do |other_op|
                next true if !other_op
                op = ops.find do |o|
                    o == other_op
                end
                next false if !op
                next true if op.base_class == self
                next true if op.base_class == other_op.base_class
                # ambiguous name look up due to multi
                # inheritance
                op.ambiguous_name = true
                other_op.ambiguous_name = true
                false
            end
            other_ops = other_ops.map(&:dup)
            other_ops.each do |other|
                old = other.alias
                add_operation other
            end
        end
    end
    # copy embedded arrays other wise they might get modified outside
    result = @operations.values.map(&:dup)
    @operations = own_ops
    result
end

#parent_class(name) ⇒ Object 



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# File 'lib/rbind/core/rclass.rb', line 115

def parent_class(name)
    @parent_classes[name]
end

#pretty_print(pp) ⇒ Object 



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# File 'lib/rbind/core/rclass.rb', line 130

def pretty_print(pp)
    super
end

#pretty_print_name ⇒ Object 



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# File 'lib/rbind/core/rclass.rb', line 119

def pretty_print_name
    str = "class #{full_name}"
    unless parent_classes.empty?
        parents = parent_classes.map do |p|
            p.full_name
        end
        str += " : " +  parents.join(", ")
    end
    str
end

#used_namespaces ⇒ Object 



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# File 'lib/rbind/core/rclass.rb', line 81

def used_namespaces
    namespaces = super.clone
    parent_classes.each do |k|
        namespaces.merge k.used_namespaces
    end
    namespaces
end